Modifiers: Add link and copy functions

Adds functions to copy a modifier between objects, and an ED_ level
function for linking modifiers between objects. This will be used in
outliner modifier drag and drop.

These functions support both regular and grease pencil modifiers.

Differential Revision: https://developer.blender.org/D8642

1 files changed, 7 insertions, 0 deletions

diff --git a/source/blender/editors/object/object_gpencil_modifier.c b/source/blender/editors/object/object_gpencil_modifier.c
index e9b430ee54b..eed3c7f419d 100644
--- a/source/blender/editors/object/object_gpencil_modifier.c
+++ b/source/blender/editors/object/object_gpencil_modifier.c
@@ -322,6 +322,13 @@ int ED_object_gpencil_modifier_copy(ReportList *reports, Object *ob, GpencilModi
   return 1;
 }
 
+void ED_object_gpencil_modifier_copy_to_object(Object *ob_dst, GpencilModifierData *md)
+{
+  BKE_object_copy_gpencil_modifier(ob_dst, md);
+  WM_main_add_notifier(NC_OBJECT | ND_MODIFIER, ob_dst);
+  DEG_id_tag_update(&ob_dst->id, ID_RECALC_TRANSFORM | ID_RECALC_GEOMETRY | ID_RECALC_ANIMATION);
+}
+
 /************************ add modifier operator *********************/
 
 static int gpencil_modifier_add_exec(bContext *C, wmOperator *op)